Heat skillet with 2 tbsp ghee on medium-high heat.
Cut 2 1/2 lbs of beef chuck roast into 1 to 2 inch pieces.
Pat dry the chuck roast pieces on all sides with a paper towel.
Add salt to each side of the chuck roast pieces.
Sear each side of the chuck roast pieces for 2 minutes.
Mix 1 1/4 cups beef broth, 1/4 cup lime juice, 1 tbsp cumin, 4 tsp minced garlic, 1 tbsp dried oregano, 1/4 tsp cloves and 1/4 tsp black pepper in the blender.
Place the seared pieces of chuck roast into the slow cooker.
Pour liquid into the slow cooker.
Cook on low for 8 to 9 hours or high for 6. For best results cook on low.
Once the chuck roast is cooked, shred with metal claws.
Let the shredded beef soak in the slow cooker for at least 10 minutes.